Empirical Evaluation of Noise Influence on Supervised Machine Learning Algorithms Using Intrusion Detection Datasets

Table 7

The data files included in the NSL-KDD dataset.

No.	NSL-KDD data files	Description	No. of attributes	No. of instances	No. of normal instances	No. of anomaly instances
1	KDDTest+	Contains the full testing set	42	22,544	9,711	12,833
2	KDDTest-21	A subset of the KDDTest+, without records of difficulty level 21 out of 21	42	11,850	2,152	9,698
3	KDDTrain+	Contains the full training set	42	125,973	67,343	58,630
4	KDDTrain+_20Percent	Represents a 20% subset of the KDDTrain+	42	25,192	13,449	11,743